A WIRELESS COMMUNICATION NODE AND A METHOD FOR PROCESSING A SIGNAL IN SAID NODE

摘要

The present disclosure relates to a wireless communication node comprising at least one array antenna (1; 1') configured to receive a radio signal, said array antenna (1; 1') comprising a plurality (M) of receiving antenna devices (2), each of said antenna devices (2) being connected to a respective receiving circuit (3) which is configured for processing said radio signal. Each receiving circuit (3) comprises a demodulator (4; 11), an analog-to-digital converter (5; 12, 13) and a decoder (6; 14), the demodulator (4; 11) being configured to receive an analog signal from the corresponding receiving antenna device (2) and to output a demodulated analog signal to said analog-to-digital converter (5; 12, 13) which outputs a converted digital signal to the decoder (6; 14). Furthermore, the node is configured for adding a direct current, DC, offset value to said demodulated analog signal wherein the combined offset values of said node follow a predetermined distribution of values, having a variance, over the analog-to-digital converters (5; 12, 13). The disclosure also relates to a method for communication over a wireless node, and an antenna arrangement.